Mold for concrete sluices.



B. B. MoDOWELL.

MOLD FOR CONCRETE SLUIGES.

APPLICATION FILED MAR. a1, 1913 Patented Feb. 3, 1914.

2 SHEETS-SHEET 1.

A llorney INVENTOR WITNESSES poLuMmA PLANOfl RAPH co., WASHINGTON, D. c.

B. B. MCDOWELL.

MOLD FOR CONCRETE SLUIOBS.

APPLICATION FILED MAR. 31, 1913. 1,086, 1 PatentedFe'b. 3, 1914.

2 SEEETS-SHBET 2.

COLUMBIA PLANOGRAPH (XL-WASHINGTON D c UNITED STAS MOLD FOR CONCRETE SLUICES.

Application filed March 31,1913.

To all whom it may concern:

Be it known that I, Bonn B. MCDOWELL, a citizen of the United States of America, residing at Van Etten, in the county of Cheniung and State of New York, have invented certain new and useful Improvements in Molds for Concrete Sluices, of which the following is a specification.

This invention relates to improvements in molds for concrete sluices.

An object of-the present device is to provide a form of mold whereby an arched sluiceway or culvert of cement may be easily and quickly constructed.

A further object of the invention is to provide such a mold which is adjustable with respect to all of its various dimensions and whereby sluice or arch ways of different sizes may be formed by the aid of the same mold.

A still further object of the invention is the provision of such a mold which is not only adjustable for the purpose of forming sluices of different sizes but in which the required elements have the function of angular adjustment and whereby the sluice-way arch may be positioned at an angle to the headers at each side of the roadway.

\Vith these general objects in view and others that will appear as the nature of the invention is better understood, the same consists in the novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings and pointed out in the appended claims.

' In the drawings forming a part of this application and in which like designating numerals refer to corresponding parts throughout the several views Figure 1 is a plan view of the assembled mold, the wall members thereof being partially broken away. Fig. 2 is a side elevation of the structure shown in Fig. 1. Fig. 3 is an end elevation of the device. Fig. 4 is a vertical transverse sectional view taken upon line 4-1 of Fig. 1. Fig. 5 is a top plan view of a portion of the assembled mold showing an angular adjustment. Fig. 6 is a break joint section employed as shown in Fig. 5, and Fig. 7 is a view of one of the arch supports detached.

The employment of sluice-ways in general roadway construction being a material part of the work in road making, the present i11- vention provides readily assembled elements which may be employed for forming the Specification of Letters Patent.

Patented Feb. 3, 1914.

Serial No. 757,942.

concrete sluices and which form being made of metal is substantially indestructible and may therefore be used in making a large number of such sluices.

In forming a sluice-way for instance directly across beneath a roadway, such as at,

any point where it is desired to conduct the water from one side of the road to the other a bot-tom foundation for the sluice-is first formed as may be desired and in some cases of solid rock and in others of plain cement work.

To form the arch of concrete through which the water is adapted to travel across beneath the road upon such foundation, the present mold as shown in Fig. 1 is positioned directly upon said foundation.

At the desired points of termination of the proposed sluice-way, such as in aline ment with the opposite sides of the road, end forms 10 are mounted in upright positions. Each end form consists of a wall member 11 and an inclosing member 12. The end forms are made adjustable in size as well as in relative position by means of the inclosing member 12 being removably mounted to the wall member 11 by means of a plurality of bolts 13 positioned through predetermined ones of the perforations 1 1 through the edges of said wall member and inclosing member. Further, each wall member consists of two parts 15 and 16 secured together by bolts 17 having outwardly positioned turn nuts 18. In a similar manner the encircling members are each formed of two angular plates 19 and 20 adjustably secured together by bolts 21 with their turn nuts 22. In this manner it will be seen that not only may the width of the encircling and wall members be adjusted and thereby the length of the end forms altered, but also the height of the encircling member may be changed with respect to the wall member engaged thereby.

Side stays 23'are provided in two parts being made adjustable in length by the winged nuts 24 and are hinged to the wall members by means of the hinged joints 25 and securing nuts 26. \Vhile any number of such side stays may be employed, three sets are ordinarily sufficient and these are placed one at the top of the arch and one at each side of the base thereof as best shown in Fig. 1. For accurately positioning said stays as required a plurality of skeleton arches 27 are positioned upright therebetween and the separate ridges are connected together by means of a chain 27. Arouate shaped plates 29 overlapping one another are positioned over said stays 23 and present a top formation upon a curve concentric with that of the bottom edge 30 of the inclosing member 12 of the end forms. \Vhen desired to position the sluice-way at an angle to the sides of the road, said plates 29 are positioned at an angle to the end forms 10 as shown in Fig. and such arrangement of the mold is had by a bending of the side stays upon their hinges 25 while the spaces resulting at the ends 30 of the plates 29 are filled by means of the breakjoint plates 31.

The skeleton arches as shown in Fig. 7 being adjustable accommodate themselves to the degree of curve desired to position the plates 29 to form the inner wall of the sluice conduit.

\i'ith the mold shown in Figs. 1 and 2 positioned at a place where it is desired to conduct the water, the end forms 10 are tilled with the plastic cement which at the bottoms of said forms will surround the exposed faces of the arched plates 29 and thus form concrete end walls for the sluice. Similar cement material is covered over the entire length of the plates between the two end forms and preferably of the same thickness as the distance between the bottom edge of the encircling members and the top surfaces of the plates 29. By the setting up of said mold and the tillin of the end forms with cement to form end walls and the connection of said walls by a coating of cement over the arcuate plates, the complete concrete sluice-way is readily molded. The height of the end walls will ordinarily be flush with the tops of the in closing members 12 although the tops of said walls may be changed or molded, as desired while the general arch wall above the plates 25) may be troweled or molded upon the (:Zi'l-lllOi in any lcsiied manner although a uniform thickness for said arch may readily be maintained. With the mold thus set up in the desired adjustments and the same filled with cement and the sluice formed thereby, the cement is allowed to harden before the mold is removed. T he form of the end walls being apparent, the substantial form and thickness of the general arch is designated by the dotted lines 40.

The adjustability and removability of the mold being a material part of the invention, it will be noted that when the cement is properly hardened, the bolts l-il and nuts 13 are disengaged whereby the encircling members 12 are readily removed. The sefinpies of this patent may be obtained for curing nuts 26 are then removed from their engagement with the side stays 23 and whereupon the wall members 11 being released the latter are also readily removed. At this point of disassembling, the skeleton arches 27 are pulled out from the interior of the structure by means of the chain 28 while the end stays 23 may be also taken out through either end of the concrete sluice. This only leaves the plates 29 within the concrete arch and these being preferably formed of metal are readily displaced as by means of a pole or other instrument and are then removed from the structure through either end of the sluice. From this descrip tion the entire structure and operation of the device will be at once apparent.

While the forms of the invention herein shown and described are what are believed to be preferable embodiments thereof, it is nevertheless to be understood that minor changes may be made in form, proportion and details of construction without departing from the spirit and scope oi the invention.

Having thus described the invention and in what manner the same is designed for use, what I claim as new and desire to secure by Letters Patent of the United States is 1. A sluice form comprising adjust-ably secured wall members, adjustable inclosing members secured to said wall members, the lower edges of said inclosing members being arcuate, side stays connecting said wall members, said stays being adjustable in length, and having their end portions hinged thereto, and overlapping segmental plates surrounding said stays.

2. A mold for forming concrete sluiceways comprising end :lorms adapted to receive concrete, adjustable side stays hinged at their ends to said forms, adjustable skelcton arches positioned between and adapted for maintaining said stays, arched plates exteriorly contacting said stays, and chain connections between each of said skeleton arches.

3. A form for making concrete sluices comprising end forms adjustable in heightand width, side stays hingedly connected at their opposite ends with said end forms, skeleton arches adjustable in size positioned within said stays and arching plates exteriorly positioned over said stays.

In testimony whereof I affix my signature in presence of two witnesses.

BURR B. llloDOlVELL. lVitnesses Anna J. SHERMAN, .lonn Korczrivsnr.

five cents each, by addressing the Commissioner of Patents. Washington, D. G. 

